phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9c1b6864a46ccade21ae46f7c163988a' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9c1b6864a46ccade21ae46f7c163988a', -1, 1714909904, 1714909904, 'c0a80201', -4, 0, 0)

Line : 187
File : sessions.php